As long as these libraries support the [Simple Authentication and Security Layer (SASL)](https://tools.ietf.org/html/rfc4422), they should be compatible with the SASL Xoauth2 mechanism supported by Gmail.\n\nIn addition to the SASL Xoauth2…
Set up your on-premise email server for SMTP relay through Google servers If your organization uses Microsoft Exchange or another SMTP service or server, you can set up the SMTP relay servi